Solenoid Or Relay-operated Tuner Means Patents (Class 334/19)
  • Patent number: 4138654
    Abstract: An electrically tuned filter arrangement including several tuned filters which may alternatively be coupled to the input and output of the filter arrangement so as to provide the arrangement with different tuning ranges. Each tuned filter has a tuning input to which a capacitive impedance is to be connected for establishing the center tuning frequency of the filter. A capacitor bank is provided including plural individual capacitor elements, and means for coupling any selected combination of the capacitor elements to a capacitive impedance output. This capacitive impedance output is switchably connectable to the tuning inputs of any of the tuned filters.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: February 6, 1979
    Assignee: Harris Corporation
    Inventor: Gabriel J. Luhowy